Home / 11,995.05-16,553.13-6,689.87

Finding the Fourth Proportional to 11,995.05, 16,553.13 and 6,689.87

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Solution

The fourth proportional to 11,995.05, 16,553.13 and 6,689.87 is: 9,232.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.05 : 16,553.13 = 6,689.87 : x
  2. Step 2: Convert to fraction form
    11,995.05/16,553.13 = 6,689.87/x
  3. Step 3: Cross multiply
    11,995.05x = 16,553.13 × 6,689.87
  4. Step 4: Simplify right side
    11,995.05x = 110,738,287.79
  5. Step 5: Solve for x
    x = 110,738,287.79/11,995.05
  6. Step 6: Final answer
    x = 9,232.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.